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System Simulator >
System Component Models >
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Voltage Controlled Switch: Type 2 (SWITCH2)

Voltage Controlled Switch: Type 2 (SWITCH2)

Property	Description	Units	Default	Range/Type
VTHRESHOLD	Control voltage threshold	Volt	0.5	(-1e+020, 1e20)/Real
RIN1	Input1 impedance	Ohm	Inf	(0, Inf]/Real
RIN2	Input2 impedance	Ohm	Inf	(0, Inf]/Real
ROUT1	Output1 impedance	Ohm	0	[0, Inf)/Real
ROUT2	Output2 impedance	Ohm	0	[0, Inf)/Real
Ports
Input1	First input signal (complex)
Input2	Second input signal, control signal (complex)
Output1	First output signal (complex)
Output2	Second output signal (complex)

Notes

This model performs voltage-controlled switching. The control voltage is represented by _V2:

_V2 = V₂_I ^. cos (2pf_2ct) - V₂_Q^.sin (2pf_2ct)

where , V₂_I+ jV₂_Q is the voltage complex envelope at the second input port, and f_2c is its carrier frequency. The carrier frequency at output ports equals to the carrier of the first input port. The voltage complex envelopes (V₃_I+ jV₃_Q) and (V₄_I+ jV₄_Q) at the first and second output ports are determined by

V₃₁ + jV₃_Q = V₁_I + jV₁_Q and V₄₁ + jV₄_Q = 0 for V2 > VTHRESHOLD,

V₄₁ + jV₄_Q₌V₁₁ + jV₁_Q and V₃₁ + jV₃_Q= 0 elsewhere,

where V₁_I + jV₁_Q is the voltage complex envelope at the first input port.

Netlist Form

SWITCH2 n1 n2 n3 n4 [VTHRESHOLD=val] [Rin1=val] [Rin2=val] [Rout1=val] [Rout2=val]

Netlist Example

SWITCH2:1 1 2 3 4 VTHRESHOLD = 1V

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